Acetylene-gas generator.



J. G. VON JENISON.

AGETYLBNE GAS GENERATOR. APPLICATION FILED JAN'. a, 1913.

COLUMBIA PLANOGRAFH C0.. WASHINGTON. n.

' TED STATES ,PATEN T OFFICE.

ACETYLENE-GAS GENERATOR.

Specication of Letters Patent.

Application filed January 3, 1913.

Patented May 5, 1914. Serial No. 740,074.

To al?- 'wwm it may concern.' Be it known that I, JOHANNES GEORGES VON JENIsoN, a citizen of the United States, residing at Linoleumville, in the county of Richmond and State of New York, have invented certain new and useful Improvements in Acetylene Gas Generators, of which the following is a specification.

This invention comprehends improvements in acetylene gasA generators, and relates more particularly to those of the type wherein a carbid holder is movable with the gas chamber.

The primary object of the invention resides in the provision of a generator of this type which shall be of extremely simple construction, efficient in operation, durable, and capable of being quickly charged and cleaned.

A more specific object of the invention resides in the provision of a novel carbid holder, wherein a spring-pressed perforated disk maintains the carbid in a packed condition and at the same time allows for the expansion of the same.

Another object of the invention is to provide a casing for the carbid holder in order that the pressure of the gas within the gas chamber will not fluctuate unduly each time the carbid comes in contact with the water.l

With these and other objects in view, as will become more apparent as the descriptio-n proceeds, the invention consists in certain novel features of construction, combination, and arrangement of parts, as will be hereinafter fully described and claimed.`

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawings, in which, the ligure represents a vertical longitudinal sectional view through my invention.

Referring in detail to the drawings by numerals, l designates the cylindrical body portion of a water tank, upon the lower end of which is threaded a somewhat flared section 2, which carries the bottom 3, said bottom being provided with a valve 4, the purpose of which will be hereinafter explained. The section 2 is internally threaded adjacent its upper end and somewhat enlarged in diameter, whereby a shoulder is formed to support a screen 5. The lower end of the body portion 1 of the tank clamps against the upper surface of the screen, holding it securely in position. A cylindrical gas bell 6 telescopes within the body portion of the water tank and is guided in its movement by the rods 7, rigidly secured at their upper ends within the brackets 8, and sliding through the brackets 9, said last mentioned brackets being rigid with the body portion l. The enlarged lower ends 10 of the guide rods, by engagement with the brackets 9, limit the upward movement of the bell 6. This bell is formed with an upwardly and inwardly inclined top wall 11, which is centrally apertured to receive a cylindrical sleeve or casing 12, said casing projecting beyond the outer surface of the wall 11 and being externally threaded. The inner end of the casing is slightly iiared, as indicated at 13, and terminates practically in the same plane with the bottom of the bell 6. A cap 14 is threaded upon the extended portion o-f the casing 12 and carries the carbid container, which comprises an outer cylindrical section 15 formed preferably of perforated metal and an inner section 16 of wire net-ting secured to the outer section in any preferred manner. The inner end of the cylindrical wire netting section 16 carries an annular sheetmetal end piece 17. -A centrally positioned rod 18 extends longitudinally of the carbid container, is secured to the cap 141 by a nut 19 and has its lower end threaded to receive a nut 20, whereby the bottom 17 of the container may be secured in position. This bottom may be formed of wire netting, if desired, or of a perforated sheet-metal disk, as shown in the drawing. A follower 22 in the form of a perforated sheet-metal disk is slidable within the carbid container upon the rod 18 and is normally forced inwardly by an expansive helical spring 23, whereby the carbid, indicated by the numeral 2A, is held in a compact formation. It will be noted that the internal diameter of the carbid holder is somewhat less than the internal diameter of the casing 12, thereby forming an annular chamber between said members, which permits the gas to How around the bottom of the casing 12 into the gas chamber provided by the bell 6.

To provide for the escape of gas when the pressure becomes excessive, I construct a safety valve, comprising a pipe 25, threaded and closed at its lower end. Nuts 26 secure the lower end of the pipe 25 to the screen 5. A pipe 27 depends from the wall 11 of the bell 6 and slides within the pipe 25, said first mentioned pipe being formed with the openings 2S, which are adapted to register with openings 2S) formed adjacent the upper' end of the pipe 25. lVhen these openings are in registration, gas may escape through the pipe 27 and out the opening 30 formed adjacent the upper end. A cap 31 is threaded upon the outer end of the pipe 27 to close the same. The top of the bell is formed with an opening having an annular flange 32 surrounding the same, said fiange being threaded adjacent its extremity to receive a screw cap 33. The cap is centrally apertured and threaded to engage the threaded upper end of the pipe 27. It will be noted that the diameter of the flanged opening is greater than the external diameter of the pipe 27 and therefore air may be permitted to escape from the bell 6 by un screwing the cap 33.

A drain pipe 34 perforated at its upper and lower ends, as clearly shown in the drawing, is connected to the valve 4 and is surrounded by a screen 35, which prevents the perforations in the pipe becoming clogged by the solid carbid. A gas outlet pipe 35 extends vertically through the water tank, through a. guide bracket 34 mounted upon Vthe bell 6, and has its upper end perforated, as shown in the drawing. The lower end of the pipe 36 communicates with a pipe 37 leading into the purifier to be described later. A valve 38 controls the flow of gas into said purifier. The generator is charged by unscrewing the cap 14 and withdrawing the carbid holder. The bottom 17 of the carbid holder is next removed and a suitable quantity of carbid placed within the container, it being understood that the spring 23 is compressed in so doing. `When the carbid holder is placed within the bell G and the bell allowed to descend, a portion of the carbid will be brought into contact with the water contained in the tank, thus causing an almost instantaneous generation of The gas will first lill the casing 12 and then flow around lower end of the same, into the gas chamber formed between said chamber and the interior of the bell G. rIhe gas raises the bell and the pressure of said gas is automatically retained at any predetermined degree. Should the pressure become excessive, the bell is raised sufficiently far to cause the openings 2S and 29 to register, whereupon a portion of the gas escapes.

Much trouble has been experienced in generators of this type, due to the instant increase of gas pressure as the carbid contacts with the water, thereby causing a fluctuation in the light. In my improved generator, generated gas first flows into the casing 12 and does not materially affect the pressure of the major portion of the which is contained within the chamber formed between the exterior of the casing 12 and the interior of the bell 6. It will be seen that the pressure may iiuctuate greatly within the casing 12 but the gas will tend to iiow in a steady stream into the bell (i. rlhe lower portion of the carbid container is made of wire gauze in order to permit a free access of water to the carbid container therein and also allow the slaked lime or carbid to drop to the bottom of the water tank. The screen insures a thorough sifting of the carbid and the removable bottom 3 makes it possible to easily empty the generator. If desired, a base 3%) may be threaded upon the bottom 1 to support the generator. The water tank may be filled through the pipe 39.

The purifier comprises an essentially cylindrical body portion having the upper section 4() and a lower section 41, threaded upon a central section 42. The central section 42 is fiared, as at 43, to provide a supporting shoulder for the perforated disk 44. A rod 45 depends from said disk and supports a plurality of receptacles 4G, 47 and "i 48, which are adapted to receive various gas purifying and drying substances. I preferably place cotton in the upper receptacle, salt in the neXt lower one, and asbestos in the receptacle 48. the purifier disposed below said receptacles is filled with sponge, designated 49. I find that the use of these materials causes the gas to burn with a bright and steady flame at the burner 50.

It will be seen from the foregoing description in connection with the accompanying drawings, that my improved generator may be cheaply manufactured, easily assembled, easily charged and easily cleaned.

It is to be understood that while I have shown and described the preferred embodiment of my invention, I do not wish to be limited to the exact construction herein shown, but may, if desired, vary the same vsuch as, for instance, employing a plurality of carbid holders which will adapt the same for use in schools, factories, and similar places.

Having thus described my invention, what I claim is 1. In an acetylene gas generator of the dip type, a vertically movable bell having a flanged opening formed in the top thereof, a cap threaded upon the flange and closing the opening, a depending carbid holder rigidly secured to the cap, the holder being of a cylindrical shape and formed of a foraminous material, a rod secured to the cap and extending longitudinally through the carbid holder, the bottom of the holder being removably connected to said rod, and means for forcing the carbid within the holder toward the bottom thereof.

2. In an acetylene gas generator of the dip type, a vertically movable bell having a rIhat portion of l anged opening formed in the top thereof, a capthreaded upon said flange and closing the opening, a carbid holder rigidly secured to the inner side of the cap and eX- tending longitudinally of the bell, the holder comprising a cylindrical body having an outer portion formed of perforated metal and the inner portion formed of wire gauze, a rod depending from the cap and extending through the holder, the bottom of the holder being removably secured to said rod, a follower slidable along the rod, and spring means for forcing the follower toward the bottom of the holder, whereby the carbid contained therein will be held in a compact form and forced from the holder after having been acted upon bythe water.

In testimony whereof I affix my signature in presence of two witnesses.

JOHANNES GEORGES VON JENISON.

Witnesses:

WILLIAM F. LEONARD, J. E. ABRAHAM.

Copies of this patent may be obtained for ive cents each, by addressing the l Commissioner of Patents, Washington, D. C. 

